<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <!--<div class="input_item clear">
        <span class="input_label">x</span>
        <div class="input_content">
             input class="input" type="textarea" row="9"> 
            <textarea name="" id="" cols="30" rows="10" class="input" ></textarea>
        </div>
    </div>-->

    <!-- <div class="box2">
        <div class="span1">xy
            <span class="span11">x</span>
        </div>x
        <span class="box1">x</span>
    </div> -->
    <!-- <div class="box3"> 
        x<input type="text" class="input1">
        <input type="text" >
    </div> -->
    <div class="ban"></div>
</body>
<style>
    .clear::after {
        content: "";
        display: block;
        clear: both;
    }

    .input_item {
        /* vertical-align: middle; */
        line-height: 20px;
        background: palevioletred;

    }
    .ban{
        border-right: red solid 50px;
        border-left: blue solid 50px;
        border-top: palegoldenrod solid 50px;
        border-bottom: palegreen solid 50px;
        box-shadow: 10px 10px 0 20px palevioletred, 10px 10px 0 20px blue, 10px 10px 0 20px blueviolet, 10px 10px 0 20px purple;
    }
    .input_label {
        float: left;
        width: 80px;
        line-height: 20px;
        background: palegreen;
        padding: 3px 10px;
    }

    .input_content {
        margin-left: 80px;
        line-height: 20px;
        background: red;
    }

    .input_content .input {
        line-height: 20px;
        width: 100px;
        background: palegoldenrod;
        border: 1px solid #ccc;
        padding: 4px 10px;
    }

    .box2 {
        background: red;
        line-height: 40px;
        /* font-size: 0; */
    }

    .span1 {
        font-size: 16px;
        background: peru;
        float: left;
        width: 100px;
        /* line-height: 80px; */
        /* vertical-align: middle; */
        /* display: inline-block; */
        line-height: 40px;
        /* font-size: 0;     */
    }

    .span11 {
        background: palegreen;
        font-size: 16px;
        vertical-align: middle; 
    }

    .box1 {
        font-size: 16px;
        display: inline-block;
        width: 100px;
        background: pink;
        /* vertical-align: middle; */
    }
    .box3{
        width: 600px;
        /* height: 200px; */
        background: powderblue;
        line-height: 40px;
    }
    .span3{
        font-size: 16px;
        display: inline-block;
        background: red;
        line-height: 40px;
        /* line-height: 40px; */
        vertical-align: middle;
    }
    .span2{
        width: 20px;
        height: 20px;
        display: inline-block;
        background: palevioletred;
    }
    .input1{
        vertical-align: middle;
        line-height: 80px;
    }

</style>
<!-- <script src="./000.js"></script> -->
<!-- 迭代器 -->
<!-- <script src="./01.iterator.js"></script> -->
<!-- 生成器 -->
<!-- <script src="./02.yield.js"></script> -->
<!-- 手写promise -->
<!-- <script src="./03.promise.js"></script> -->
<!-- <script src="./05lazyman.js"></script> -->
<!-- <script src="./06runque.js"></script> -->
<script src="./promisify.js"></script>


</html>